Jace, Unraveler of Secrets [San Diego Comic-Con 2017] The List where X is that spell's

where X is that spell's mana value

" —Shauku

Set: The List Type: Creature — Hydra Rarity: Mythic Cost: {G}{G}{G}{G}{G}{G}{G}{G} This spell costs {G} less to cast for each green creature you control

or become tapped

Set: Antiquities Type: Enchantment Rarity: Uncommon Cost: {3}{B} Whenever an artifact becomes tapped or a player activates an artifact's ability without {T} in its activation cost

Jace, Unraveler of Secrets [San Diego Comic-Con 2017] The List where X is that spell'sSet: San Diego Comic Con 2017 Type: Legendary Planeswalker Jace Rarity: Mythic Cost: {3}{U}{U} +1: Scry 1, then draw a card. 2: Return target creature to its owner's hand. 8: You get an emblem with "Whenever an opponent casts their first spell each turn, counter that spell."